K 10
svn:author
V 8
tanimura
K 8
svn:date
V 27
2002-04-27T08:24:29.000000Z
K 7
svn:log
V 400
Add a global sx sigio_lock to protect the pointer to the sigio object
of a socket.  This avoids lock order reversal caused by locking a
process in pgsigio().

sowakeup() and the callers of it (sowwakeup, soisconnected, etc.) now
require sigio_lock to be locked.  Provide sowwakeup_locked(),
soisconnected_locked(), and so on in case where we have to modify a
socket and wake up a process atomically.

END